Transfer of pollutants from macrocystis pyrifera to tetrapygus niger in a highly impacted coastal zone of chile

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dc.contributor.authorLatorre‐padilla, Nicolás
dc.contributor.authorMeynard, Andrés
dc.contributor.authorRivas, Jorge
dc.contributor.authorContreras‐porcia, Loretto
dc.date.accessioned2023-07-21T14:13:04Z
dc.date.available2023-07-21T14:13:04Z
dc.date.issued2021-10
dc.descriptionIndexación: Scopuses
dc.description.abstractPAHs and heavy metals are characteristic pollutants in urbanized coastal areas, especially those with industrial activity. Given this context and the ability of Macrocystis pyrifera to drift when detached and provide trophic subsidy in coastal systems, we analyzed the potential transfer of pollutants to the herbivore Tetrapygus niger, through diet, in an industrialized coastal zone in Central Chile (Caleta Horcón) and characterized the impacted zone using diverse polluted ecotoxicological indices. For this purpose, a culture experiment was conducted where M. pyrifera individuals from Algarrobo (control site) were cultivated in Caleta Horcón and then used as food for T. niger. The contents of both PAHs and heavy metal contents were subsequently determined in algal tissue and sea urchin gonads as well as in the seawater. The results show that algae cultivated in Caleta Horcón had higher concentrations of naphthalene (NAF) compared to those from a low industrial impact zone (Algarrobo) (2.5 and 1.8 mg kg−1, respectively). The concentrations of Cu, As, and Cd were higher in Caleta Horcón than in Algarrobo in both M. pyrifera and T. niger. For all metals, including Pb, higher concentrations were present in T. niger than in M. pyrifera (between 5 and 798 times higher). Additionally, as indicated by the toxicological indices MPI (0.00804) and PLI (10.89), Caleta Horcón is highly contaminated with metals compared to Algarrobo (0.0006 and 0.015, respectively). Finally, the bioconcentration factor (BCF) and trophic transfer factor (TTF) values were greater than one in most cases, with values in Caleta Horcón exceeding those in Algarrobo by one or two orders of magnitude. This study provides evidence that Caleta Horcón is a highly impacted zone (HIZ) compared to Algarrobo, in addition to evidence that the biomagnification of certain pollutants, including the possible responses to contaminants, are apparently not exclusively transferred to T. niger through diet. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.es
dc.description.urihttps://www-scopus-com.recursosbiblioteca.unab.cl/record/display.uri?eid=2-s2.0-85117207933&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=72d58a2ccbd20e5d5afddabac8b59d30&sot=aff&sdt=cl&cluster=scofreetoread%2c%22all%22%2ct%2bscopubyr%2c%222021%22%2ct%2bscosubtype%2c%22ar%22%2ct%2bscosubjabbr%2c%22CENG%22%2ct%2c%22CHEM%22%2ct%2c%22BIOC%22%2ct&sl=61&s=AF-ID%28%22Universidad+Andr%c3%a9s+Bello%22+60002636%29+AND+SUBJAREA%28CENG%29&relpos=9&citeCnt=4&searchTerm=
dc.identifier.citationToxics Open Access Volume 9, Issue 10 October 2021 Article number 244es
dc.identifier.doi10.3390/toxics9100244
dc.identifier.issn23056304
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/51899
dc.language.isoenes
dc.publisherMDPIes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectEcosystem healthes
dc.subjectHeavy metalses
dc.subjectKelpses
dc.subjectMarine contaminationes
dc.subjectPAHses
dc.subjectSea urchines
dc.titleTransfer of pollutants from macrocystis pyrifera to tetrapygus niger in a highly impacted coastal zone of chilees
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